21007584

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:241

約数の個数: 144

約数和(自身を含む): 66777984

約数和(自身を除く): 45770400

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 31, 32, 36, 39, 48, 52, 62, 72, 78, 93, 96, 104, 117, 124, 144, 156, 181, 186, 208, 234, 248, 279, 288, 312, 362, 372, 403, 416, 468, 496, 543, 558, 624, 724, 744, 806, 936, 992, 1086, 1116, 1209, 1248, 1448, 1488, 1612, 1629, 1872, 2172, 2232, 2353, 2418, 2896, 2976, 3224, 3258, 3627, 3744, 4344, 4464, 4706, 4836, 5611, 5792, 6448, 6516, 7059, 7254, 8688, 8928, 9412, 9672, 11222, 12896, 13032, 14118, 14508, 16833, 17376, 18824, 19344, 21177, 22444, 26064, 28236, 29016, 33666, 37648, 38688, 42354, 44888, 50499, 52128, 56472, 58032, 67332, 72943, 75296, 84708, 89776, 100998, 112944, 116064, 134664, 145886, 169416, 179552, 201996, 218829, 225888, 269328, 291772, 338832, 403992, 437658, 538656, 583544, 656487, 677664, 807984, 875316, 1167088, 1312974, 1615968, 1750632, 2334176, 2625948, 3501264, 5251896, 7002528, 10503792, 21007584]

約数ペア:

[(1, 21007584), (2, 10503792), (3, 7002528), (4, 5251896), (6, 3501264), (8, 2625948), (9, 2334176), (12, 1750632), (13, 1615968), (16, 1312974), (18, 1167088), (24, 875316), (26, 807984), (31, 677664), (32, 656487), (36, 583544), (39, 538656), (48, 437658), (52, 403992), (62, 338832), (72, 291772), (78, 269328), (93, 225888), (96, 218829), (104, 201996), (117, 179552), (124, 169416), (144, 145886), (156, 134664), (181, 116064), (186, 112944), (208, 100998), (234, 89776), (248, 84708), (279, 75296), (288, 72943), (312, 67332), (362, 58032), (372, 56472), (403, 52128), (416, 50499), (468, 44888), (496, 42354), (543, 38688), (558, 37648), (624, 33666), (724, 29016), (744, 28236), (806, 26064), (936, 22444), (992, 21177), (1086, 19344), (1116, 18824), (1209, 17376), (1248, 16833), (1448, 14508), (1488, 14118), (1612, 13032), (1629, 12896), (1872, 11222), (2172, 9672), (2232, 9412), (2353, 8928), (2418, 8688), (2896, 7254), (2976, 7059), (3224, 6516), (3258, 6448), (3627, 5792), (3744, 5611), (4344, 4836), (4464, 4706)]